The Computer Language
25.02 Benchmarks Game

Swift versus Java naot

How the programs are written matters! Always look at the source code.

If the fastest programs are flagged * possible hand-written vector instructions or "unsafe" or naked ffi, does the host language matter? You might be more interested in the less optimised programs — more seconds, less gz source code.

fannkuch-redux      
  elapsed Mean or 95% CI      
source secs cpu secs mem gz make
* Swift #3 8.22 32.50—32.61 13,808 1103 14.41
Java naot #3 34.41 34.41 17,514 1264 98.17
Swift #8 34.68 34.68—34.78 13,476 470 12.23
Java naot 9.26 36.60 18,522 1289 96.54
Java naot #2 46.96 46.96 16,175 520 95.31
Java naot #8 51.93 51.94—51.98 16,269 517 93.86
n-body      
  elapsed Mean or 95% CI      
source secs cpu secs mem gz make
* Swift #3 5.46 5.45—5.53 25,002 1688 14.30
* Swift #4 5.49 5.49 25,010 1361 15.19
* Swift #5 5.52 5.50—5.55 25,010 1372 15.67
* Swift #7 5.53 5.52 25,010 1333 14.58
Swift #6 5.81 5.79—5.86 12,947 1213 13.99
Java naot #4 6.02 6.01—6.09 20,296 1495 145.73
Swift #8 6.66 6.66 12,808 1285 12.73
Java naot #2 6.77 6.77 19,952 1430 144.22
Java naot #3 6.77 6.75—6.83 19,923 1436 143.42
Java naot #5 7.23 7.21—7.27 19,972 1435 146.75
Java naot 7.26 7.25—7.29 24,383 1437 148.73
Java naot #8 7.30 7.29—7.33 19,862 1322 145.10
Swift 7.89 7.88 12,808 1210 13.77
Swift #9 287.49 287.49—288.02 24,867 1532 14.21
spectral-norm      
  elapsed Mean or 95% CI      
source secs cpu secs mem gz make
Java naot #8 5.35 5.35 20,886 453 146.59
Swift #8 5.36 5.35 24,936 411 15.00
Java naot 5.36 5.35 25,215 521 146.57
Swift #3 1.45 5.71 13,705 607 13.91
Java naot #2 1.47 5.71 26,616 956 142.41
Java naot #3 1.47 5.72 29,483 762 144.71
mandelbrot      
  elapsed Mean or 95% CI      
source secs cpu secs mem gz make
* Swift #7 1.35 5.30 57,856 1147 15.57
* Swift #6 1.48 5.78 60,969 1147 15.74
Java naot #6 3.96 15.67 58,348 808 97.90
Java naot #4 4.27 15.76 82,633 667 96.47
Java naot #2 4.01 15.87 58,278 802 96.26
Swift #8 25.63 25.62 12,841 426 13.44
Swift 26.55 26.54 12,853 400 13.78
Swift #5 7.28 27.12 49,291 665 14.09
Java naot #8 28.57 28.53—28.69 16,392 441 95.54
Java naot 30.59 30.44—30.97 19,927 671 146.91
Java naot #3 7.80 31.00 63,054 910 145.66
* Swift #3   Bad Output  
fasta      
  elapsed Mean or 95% CI      
source secs cpu secs mem gz make
Java naot #6 1.11 3.19 23,798 2549 95.92
Java naot #4 3.26 3.26 16,400 1528 95.52
Java naot #5 1.13 3.80 24,113 2478 95.50
* Swift #2 2.24 4.74—5.94 13,767 1952 15.21
* Swift #3 2.20 5.37 39,313 2097 16.81
* Swift 5.43 5.42—5.47 12,640 1533 14.40
Java naot #2 5.69 5.70 16,146 1259 97.56
Java naot #8 10.45 10.48—10.54 103,199 894 93.89
Swift #8 18.86 18.86—18.92 12,837 828 13.46
k-nucleotide      
  elapsed Mean or 95% CI      
source secs cpu secs mem gz make
Java naot 6.25 20.46—20.50 366,531 1821 150.33
Java naot #3 8.31 28.22—28.29 363,635 1642 150.99
Java naot #6 8.35 28.25—28.30 397,414 1614 150.20
Java naot #4 36.76 36.75—38.47 183,878 1887 150.92
Java naot #5 22.53 51.46—52.54 203,649 2225 152.81
* Swift #2 14.46 55.16—55.44 273,932 1373 14.99
Java naot #8 85.57 87.80—89.42 1,782,706 786 149.27
Swift #8 167.99 175.66—188.61 904,810 658 14.96
Swift #7 225.53 231.92—242.63 649,970 607 14.99
Swift   Empty  
reverse-complement      
  elapsed Mean or 95% CI      
source secs cpu secs mem gz make
* Swift 1.97 2.41 825,594 1293 16.00
Java naot #6 4.05 4.72—4.77 2,063,376 760 94.05
Java naot #5 6.03 6.05 1,100,202 1115 95.80
Java naot #4 6.75 6.76 1,914,102 656 95.45
Java naot #3   Bad Output  
Java naot #7   Bad Output  
binary-trees      [ Contentious. Different approaches. ]
  elapsed Mean or 95% CI      
source secs cpu secs mem gz make
Java naot #3 4.85 4.85—4.91 290,574 546 96.06
Java naot #6 5.12 5.13—5.17 299,389 535 97.18
Java naot #2 5.15 5.17—5.27 299,610 558 96.54
Java naot #4 5.54 5.54—5.76 305,373 846 95.54
Java naot #7 3.90 7.33—7.53 338,911 841 95.08
Swift 18.32 54.27—54.38 763,609 720 15.54
Swift #4 17.69 55.61—57.68 733,131 772 15.64
Swift #5 18.99 56.13—58.05 764,781 813 14.50
Swift #2 18.36 58.30—64.86 733,131 822 15.77
Swift #3 18.24 58.63—59.13 733,000 868 14.57
* Swift #9   Empty  
pidigits      [ Contentious. Different libraries. ]
  elapsed Mean or 95% CI      
source secs cpu secs mem gz make
* Swift #2 0.76 0.75 14,238 606 13.58
Java naot #5 8.09 8.12—8.18 230,797 925 167.91
Java naot 8.86 8.91 304,071 807 100.74
Java naot #2   Empty  
Java naot #4   Empty  
Java naot #3   Empty  
regex-redux      [ Contentious. Different libraries. ]
  elapsed Mean or 95% CI      
source secs cpu secs mem gz make
Java naot #4 1.38 3.98 554,586 2441 167.77
Java naot 11.36 20.96—21.08 280,367 875 101.78
Java naot #6 7.66 21.95—21.99 392,942 746 101.47
Java naot #3 7.63 22.03—22.08 383,447 935 102.19
Swift #2 38.81 38.84—39.05 710,750 678 14.74
Swift 23.39 39.78—39.91 922,284 721 13.23
Swift #4 18.22 41.22—41.58 1,099,583 751 14.65
Java naot #2   Empty  
Swift

Swift version 6.0
(swift-6.0-RELEASE)
Target: x86_64-unknown-linux-gnu

Java naot

native-image 23.0.2 2025-01-21
GraalVM Runtime Environment
Oracle GraalVM 23.0.2+7.1